Detection rules › Sigma

Potentially Suspicious GoogleUpdate Child Process

Severity
high
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects potentially suspicious child processes of "GoogleUpdate.exe"

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4688A new process has been created.

Stages and Predicates

Stage 1: selection

ParentImage|endswith: '\GoogleUpdate.exe'

Stage 2: not 1 of filter_main_*

or:
Image|endswith: '\setup.exe'
Image|endswith: chrome_installer.exe
Image|endswith: chrome_updater.exe
Image: null
Image|contains: '\Google'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
Imageends_with
  • \setup.exe
  • chrome_installer.exe
  • chrome_updater.exe
Imagematch
  • \Google
ParentImageends_with
  • \GoogleUpdate.exe corpus 2 (sigma 2)